CN111637129B

CN111637129B - Television set

Info

Publication number: CN111637129B
Application number: CN202010440541.1A
Authority: CN
Inventors: 盛尊友; 刘霄; 盛希龙
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2022-01-04
Anticipated expiration: 2040-05-22
Also published as: CN111637129A

Abstract

The application discloses a television, which comprises a rear shell, wherein the rear shell is provided with a sleeve and a nut column matched with the sleeve; the sleeve and the rear shell are integrally formed by injection molding, protrude from the inner side of the rear shell and penetrate through the rear shell; the nut column is a plastic nut column, and an internal thread hole is formed in the nut column; the nut column is clamped in the sleeve on the inner side of the rear shell, and the opening of the internal thread hole extends into the sleeve, so that a bolt on the outer side of the rear shell extends into the sleeve and is in threaded fit with the internal thread hole. The structural design of the television can obviously save the material cost on one hand; on the other hand, the bottleneck process in the injection molding process of the rear shell can be avoided, the injection molding process is simplified, and the injection molding cost is effectively reduced.

Description

Television set

Technical Field

The application relates to the field of household appliances, in particular to a television.

Background

At present, two placing modes are mainly adopted in the use of the television: one is a seat type placement and the other is a wall hanging type placement. The seat type placement is adopted, a support platform such as a television cabinet is required to be prepared in a household, and the placement mode occupies a certain floor space, so that the household space is crowded. The wall-mounted television is adopted for placing, and the television is hung on a wall, so that a large amount of available ground space can be saved for people; therefore, the television is more popular with people in a wall-mounted mode.

In order to realize the wall-mounted placement of the television, a nut post for wall-mounted fixation is generally directly injection-molded on the rear cabinet by an insert, and the nut post is generally a metal nut post. On one hand, the mode can reduce the use of the wall hanging adapter and the assembling process of the wall hanging adapter, save the cost and improve the production efficiency; on the other hand, can guarantee that the hanging hole site is accurate, reduce the mount assembly and bring the fixed hole site deviation problem.

However, the above-mentioned fixed mounting structure has the following disadvantages:

firstly, the nut column needs to be obtained by adopting a metal processing technology, particularly in a longer nut column, because the processed nut column uses a bar material and most of the material is discarded as waste materials (scraps), the material cost is greatly wasted;

secondly, when carrying out integrative moulding plastics to backshell and metal nut post, need increase the process of placing the nut post, this process is the bottleneck process in the backshell injection moulding technology, is showing the complexity that has promoted the backshell and moulds plastics, has improved the cost of moulding plastics.

Disclosure of Invention

The technical problem to be solved by the application is to provide a television, and on one hand, the structural design of the television can obviously save the material cost; on the other hand, the bottleneck process in the injection molding process of the rear shell can be avoided, the injection molding process is simplified, and the injection molding cost is effectively reduced.

In order to solve the technical problem, the application provides a television, which comprises a rear shell, wherein the rear shell is provided with a sleeve and a nut column matched with the sleeve;

the sleeve and the rear shell are integrally formed by injection molding, protrude from the inner side of the rear shell and penetrate through the rear shell;

the nut column is a plastic nut column, and an internal thread hole is formed in the nut column;

the nut column is clamped in the sleeve on the inner side of the rear shell, and the opening of the internal thread hole extends into the sleeve, so that a bolt on the outer side of the rear shell extends into the sleeve and is in threaded fit with the internal thread hole.

Optionally, the nut post includes a post body and a nut cover; the outer diameter of the nut cover is larger than that of the column body, and a first nut column step surface is formed between the nut cover and the column body;

the outer diameter of the nut cover is larger than the outer diameter of the end face of the sleeve, and the inner diameter of the column body is smaller than the inner diameter of the sleeve, so that the step face of the first nut column is attached to and in pressure joint with the end face of the sleeve.

Optionally, the column body comprises a first column body and a second column body, and the outer diameter of the first column body is larger than that of the second column body, so that a second nut column step surface is formed between the first column body and the second column body;

a first sleeve step surface is formed inside the sleeve, and the second nut column step surface is attached and pressed on the first sleeve step surface.

Optionally, the nut post includes a nut head connected to the second post body, an outer diameter of the nut head is greater than an outer diameter of the second post body, and the outer diameter of the nut head is greater than an inner diameter of the sleeve at an inner side of a position where the first sleeve step surface is located, so that the nut head is clamped in the sleeve.

Optionally, the outer wall of the nut post is provided with a notch, and the inner wall of the sleeve is provided with a notch plane attached to the notch.

Optionally, the outer wall of the nut column is provided with a guiding and positioning rib along the axial direction, and the inner wall of the sleeve is provided with a guiding and positioning groove matched with the guiding and positioning rib.

Optionally, the inner side end surface of the guiding and positioning rib forms a third nut column step surface, the inner wall of the sleeve is provided with a second sleeve step surface, and the third nut column step surface is attached to and pressed on the second sleeve step surface.

Optionally, the outer wall of the sleeve is distributed and connected with a plurality of reinforcing ribs along the circumferential direction, and the reinforcing ribs are connected to the inner wall of the rear shell.

Optionally, the nut columns are split structures symmetrically arranged, and include a first half nut column and a second half nut column; the first half-nut column and the second half-nut column are connected in a rotating mode at one end, so that the first half-nut column and the second half-nut column can be closed in a rotating mode to form the complete internal threaded hole.

Optionally, the nut column is of a split structure with bilateral symmetry.

Optionally, the nut column is of a vertically symmetrical split structure.

Optionally, the nut post includes an open end forming an opening of the internal threaded hole, and a nut cap closing the internal threaded hole;

the nut column forms an upper and lower split structure on one side of the opening end.

the nut column forms an up-down split structure on one side of the nut cover.

Optionally, the first half-nut column and the second half-nut column are rotatably connected through a hinge.

Optionally, in the first half nut column and the second half nut column, a positioning protruding portion is arranged on an inner end surface of one of the first half nut column and the second half nut column, and a positioning recessed portion matched with the positioning protruding portion is arranged on the other of the first half nut column and the second half nut column.

Optionally, the positioning protruding portion is a positioning column, and the positioning recessed portion is a positioning hole.

In an embodiment of the present application, the application provides a television, including a rear shell, where the rear shell is provided with a sleeve and a nut post matched with the sleeve; the sleeve and the rear shell are integrally formed by injection molding, protrude from the inner side of the rear shell and penetrate through the rear shell; the nut column is a plastic nut column, and an internal thread hole is formed in the nut column; the nut column is clamped in the sleeve on the inner side of the rear shell, and the opening of the internal thread hole extends into the sleeve, so that a bolt on the outer side of the rear shell extends into the sleeve and is in threaded fit with the internal thread hole.

In the technical scheme, the nut column is made of the plastic nut column, so that the plastic nut column can be formed in an injection molding mode, and compared with the prior art that a large amount of materials are wasted due to the fact that the metal nut column needs to be processed in a tapping mode, the plastic nut column is basically free of material waste. In addition, because the plastic nut column is adopted, the plastic nut column has certain elasticity, and can be inserted into the sleeve to be clamped after the rear shell is subjected to injection molding, so that clamping matching is realized. The back shell and the sleeve are not inserted during injection molding, and the connection is completed by one injection molding. Therefore, the bottleneck process in the injection molding process of the rear shell and the sleeve can be avoided, the injection molding process of the rear shell and the sleeve is simplified, and the injection molding processing cost of the rear shell and the sleeve is obviously reduced.

In summary, the structural design of the television set provided by the application can significantly save material cost on one hand; on the other hand, the bottleneck process in the injection molding process of the rear shell can be avoided, the injection molding process is simplified, and the injection molding cost is effectively reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a television set according to an embodiment of the present application;

FIG. 2 is a partial enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic structural view of a plastic nut post of the television set of FIG. 1;

FIG. 4 is a cross-sectional view of the nut stem of FIG. 3;

FIG. 5 is a front view of the television set of FIG. 1;

FIG. 6 is a cross-sectional view taken in the direction BB in FIG. 5;

FIG. 7 is a partial enlarged view of portion B of FIG. 6;

FIG. 8 is a schematic structural view of a plastic nut post according to a second embodiment of the present application;

FIG. 9 is a schematic view of the plastic nut post of FIG. 8 from another perspective;

FIG. 10 is a schematic view of a plastic nut post according to a third embodiment of the present application;

fig. 11 is a schematic structural view of a plastic nut post in a fourth embodiment of the present application.

Wherein, the corresponding relationship between the part names and the reference numbers in the figures 1 to 11 is as follows:

rear housing 100:

sleeve 200: a first sleeve step surface 201, a cut plane 202, a guide positioning groove 203, a second sleeve step surface 204, a reinforcing rib 205,

The nut post 300: the nut includes an internal threaded hole 301, a nut cover 302, a first nut post step surface 302a, a first post body 303, a second post body 304, a second nut post step surface 304a, a nut head 305, a cutout portion 306, a guide positioning rib 307, a third nut post step surface 307a, a first half nut post 308, a second half nut post 309, a hinge 310, a positioning post 311, and a positioning hole 312.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In some of the flows described in the present specification and claims and in the above figures, a number of operations are included that occur in a particular order, but it should be clearly understood that these operations may be performed out of order or in parallel as they occur herein, with the order of the operations being indicated as 101, 102, etc. merely to distinguish between the various operations, and the order of the operations by themselves does not represent any order of performance. Additionally, the flows may include more or fewer operations, and the operations may be performed sequentially or in parallel. It should be noted that, the descriptions of "first", "second", etc. in this document are used for distinguishing different messages, devices, modules, etc., and do not represent a sequential order, nor limit the types of "first" and "second" to be different.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a television according to an embodiment of the present application; fig. 2 is a partially enlarged view of a portion a in fig. 1.

In one embodiment, as shown in fig. 1, the tv set provided by the present application includes a rear housing 100, the rear housing 100 is provided with a sleeve 200 and a nut post 300 engaged with the sleeve 200; as shown in fig. 1, the sleeve 200 is integrally injection-molded with the rear case 100, protrudes from the inner side of the rear case 100, and penetrates the rear case 100; in fig. 1, the inner wall of the rear housing 100 is seen, the sleeve 200 protruding from the side wall of the rear housing 100, whereupon the nut stem 300 extends from the interior of the rear housing 100 into the sleeve 200, completing the mating connection with the sleeve 200.

In this embodiment, the nut post 300 is a plastic nut post 300, and the nut post 300 is provided with an internal threaded hole 301; on this basis, the inner nut post 300 of the rear case 100 is engaged with the sleeve 200, and the opening of the female screw hole 301 is inserted into the sleeve 200, so that the bolt on the outer side of the rear case 100 is inserted into the sleeve 200 and threadedly engaged with the female screw hole 301. Note that, on the back side of the rear case 100 shown in fig. 1, which is also the outer side of the rear case 100, the fastening connection can be realized by inserting another bolt into the nut post 300 by screw-fitting.

In the above-described embodiment, the nut post 300 is made of plastic nut post 300, and thus can be formed by injection molding, and compared to the prior art in which a large amount of material is wasted due to the tapping process required by the metal nut post 300, the plastic nut post 300 has substantially no material waste. In addition, because the plastic nut column 300 has certain elasticity, the plastic nut column can be inserted into the sleeve 200 to be clamped after the injection molding of the rear shell 100 and the sleeve 200 is completed, so that the clamping matching is realized. The coupling is completed by one injection molding without inserting the rear case 100 and the sleeve 200 at the time of injection molding. Therefore, a bottleneck process in the injection molding process of the rear housing 100 and the sleeve 200 can be avoided, and the injection molding process of the rear housing 100 and the sleeve 200 is simplified, thereby significantly reducing the injection molding cost of the rear housing 100 and the sleeve 200.

In summary, the structural design of the television set provided by the application can obviously save material cost on one hand; on the other hand, the bottleneck process in the injection molding process of the rear shell 100 can be avoided, the injection molding process is simplified, and the injection molding cost is effectively reduced.

In the above-described embodiments, further improvements can be made. For example, referring to fig. 2, fig. 3 and fig. 4, fig. 3 is a schematic structural view of a plastic nut post of the television set in fig. 1; FIG. 4 is a cross-sectional view of the nut stem of FIG. 3.

In the present solution, as shown in fig. 3 and 4, the nut post 300 includes a post body and a nut cover 302; the outer diameter of the nut cap 302 is greater than the outer diameter of the post body, forming a first nut post step surface 302a therebetween; in addition, as shown in fig. 1 and 2, the outer diameter of the nut cap 302 is larger than the outer diameter of the end surface of the sleeve 200, and the inner diameter of the post body is smaller than the inner diameter of the sleeve 200, so that the first nut post step surface 302a is adhered and pressed against the end surface of the sleeve 200.

In the above solution, on one hand, the nut post 300 can be extended into the sleeve 200, and on the other hand, due to the limiting effect of the first nut post step surface 302a, the nut post 300 cannot be completely sunk into the sleeve 200 and is clamped on the outer end surface of the sleeve 200, thereby achieving the axial limiting.

In the above technical solution, further improvements can be made. For example, please refer to fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, fig. 5 is a front view of the television set in fig. 1; FIG. 6 is a cross-sectional view taken in the direction BB in FIG. 5; fig. 7 is a partially enlarged view of a portion B in fig. 6.

In the present solution, as shown in fig. 3 and 4, the column body includes a first column body 303 and a second column body 304, and the outer diameter of the first column body 303 is larger than the outer diameter of the second column body 304 so that a second nut column step surface 304a is formed therebetween; as shown in fig. 6 and 7, a first sleeve step surface 201 is formed inside the sleeve 200, and a second nut shank step surface 304a is adhered and pressed to the first sleeve step surface 201.

In the above structure, when the nut post 300 is inserted into the sleeve 200, the first nut post step surface 302a contacts the first sleeve step surface 201 as the nut post 300 is inserted, and the first nut post step surface and the first sleeve step surface are contacted, and the matching limit is realized because the profiles of the first nut post step surface and the first sleeve step surface are consistent. Due to the mutual matching limiting effect between the first sleeve step surface 201 and the second nut post step surface 304a, the limiting performance between the nut post 300 and the sleeve 200 in the axial direction can be further improved. In addition, due to the existence of the first sleeve step surface 201, the nut post 300 can be clamped in the sleeve 200, and the backward movement cannot be realized, so that the nut post 300 is tightly clamped in the sleeve 200.

In the above solution, further improvements and designs can be made. For example, as shown in fig. 3 and 4, the nut post 300 includes a nut head 305 coupled to the second post body 304, the nut head 305 having an outer diameter greater than the outer diameter of the second post body 304; on the basis of this structure, as shown in fig. 7, the outer diameter of the nut head 305 is larger than the inner diameter of the sleeve 200 inside the position of the first sleeve step surface 201, so that the nut head 305 is engaged with the sleeve 200.

In the above structure, as shown in fig. 3 and 4, the nut head 305 of the nut post 300 and the second post body 304 form an inverted cap structure due to the difference in outer diameter. As shown in fig. 7, the outer diameter of the nut head 305 is larger than the inner diameter of the sleeve 200 at the inner side of the first sleeve step surface 201, and the nut stud 300 is a plastic nut stud 300 and has a certain elastic deformation capability, so that the nut head 305 can be clamped into the sleeve 200 to form a snap-in limit structure, and cannot fall out of the sleeve 200.

In any of the above technical solutions, further improvements can be made. For example, as shown in fig. 2 and 3, the outer wall of the nut post 300 is provided with a notch, and the inner wall of the sleeve 200 is provided with a notch plane 202 that is in contact with the notch. In fig. 2, the cut-out portion of the nut post 300 is not shown because it is inside the paper due to the view angle blocking relationship. While the cut plane 202 of the sleeve 200 is shown.

In the above structure, the engagement between the cut-out portion and the cut-out plane 202 prevents the nut post 300 and the sleeve 200 from rotating in the circumferential direction, thereby achieving the rotation restriction in the circumferential direction.

As shown in fig. 2 and 3, the outer wall of the nut post 300 is provided with a guide positioning rib 307 along the axial direction, and the inner wall of the sleeve 200 is provided with a guide positioning groove 203 engaged with the guide positioning rib 307. In this structure, when the nut post 300 is inserted into the sleeve 200, the guide positioning ribs 307 are engaged with the guide positioning grooves 203 in place, and then the nut post 300 is very conveniently inserted into the sleeve 200 due to the guide spacing between the guide positioning ribs 307 and the guide positioning grooves 203.

In the above scheme, further improvements can be made. For example, as shown in fig. 3 and 7, the inner side end surface of the guiding and positioning rib 307 forms a third nut post step surface 307a, the inner wall of the sleeve 200 is provided with a second sleeve step surface 204, and the third nut post step surface 307a is adhered and pressed on the second sleeve step surface 204.

In this structure, the inner end surface of the guiding and positioning rib 307 forms a third nut column step surface 307a, and the step surface cooperates with the second sleeve step surface 204 on the inner wall of the sleeve 200 for limiting, so as to further axially limit the nut column 300 and the sleeve 200 bracket, and the stability of limiting is higher.

In addition, as shown in fig. 1 and 2, a plurality of ribs 205 are distributed and connected to the outer wall of the sleeve 200 in the circumferential direction, and the ribs 205 are connected to the inner wall of the rear case 100. It should be noted that the forming method of the reinforcing rib 205 is not limited, and the reinforcing rib may be formed by integral injection molding, or may be added in a subsequent step, which is not limited in the present application. Due to the function of the reinforcing rib 205, the connection performance between the sleeve 200 and the rear case 100 is more stable.

In conclusion, the present application provides a wall-mounted plastic nut post 300 for a television and an assembly structure thereof, which aims to replace the conventional metal embedded nut post 300 for a television and a structure thereof, thereby improving the production efficiency of components and reducing the component cost of the television. According to VESA international standard, four wall-mounted fixed points are required to be provided at the back of a television for users to use by hanging on the wall. Since the nut post 300 is not usually used as a high-strength fastener, generally, 1-2 wall-mounted brackets directly fixed on a display screen backboard can be reserved for medium-small-sized flat-panel television products as main bearing points, and other wall-mounted fixing points can be provided with fixing points by using the nut post 300.

The injection molding production mode has very low manufacturing cost and no waste. Injection molded plastic nut post 300 is used which is very inexpensive and produces no waste as compared to metal alternatives. The end result is that the nut post 300 is manufactured at a significantly reduced cost and without waste. And injection molding is a relatively efficient production mode, so that the production efficiency is improved to a certain extent and the processing cost is reduced. Choosing components with as low a density as possible while meeting product functional and quality requirements may also reduce the weight of the final assembly.

In order to solve the above-mentioned technical defects of the metal nut post 300, such as high cost and a takt bottleneck of an embedded process, the injection molding process of the plastic nut post 300 and the rear shell 100 in the present application is not strongly related, but the plastic nut post 300 and the rear shell 100 can be pressed in to complete the assembly by applying a certain force after the injection molding is completed, preferably the plastic nut post 100 can be pressed in to complete the assembly immediately after the injection molding is completed, and certainly the rear shell 100 can be assembled in a centralized manner after the injection molding is completed. In addition, the plastic nut post 300 is injection molded with threads on itself, eliminating the need for separate tapping. The assembly between the plastic nut post 300 and the rear shell 100 is provided with a certain guiding, limiting and back-off fixing structure, and the two can be post-assembled.

The rear shell 100 adopted by the application is made of plastic materials, and can be made of materials such as PS, ABS, PC + ABS and the like, a through hole with a certain diameter is arranged at a wall hanging hole position, a sleeve 200 which penetrates inside and outside and is arranged at a certain height is correspondingly arranged inwards of the rear shell 100, the main body of the sleeve 200 is in a cylindrical shape, and a straight edge (namely a gap part in the technical scheme) in an arc area with a position less than 1/4 replaces an arc edge and is used for limiting, preventing foolproof installation and preventing random rotation; one part protrudes outwards to form a rectangular cavity (namely the guide positioning groove 203 in the technical scheme), and the cavity is not penetrated outwards and is matched with the guide limiting rib of the plastic nut column 300, so that the plastic nut column 300 can be conveniently pressed in and prevented from being blocked and can be prevented from rotating in the using process. The sleeve 200 is provided with the reinforcing ribs 205 on the periphery, and the reinforcing ribs are mainly used for protecting the sleeve 200 from being damaged normally in the assembling and using processes, so that the strength requirement of the sleeve 200 is ensured.

The nut post 300 may be made of a relatively general engineering plastic material such as nylon (PA), Polycarbonate (PC) or Polyoxymethylene (POM), preferably PA 66.

In the above embodiment, the plastic nut post 300 is in a complete closed form in the existing manufacturing process, and the main production process is injection molding through a plastic mold. Because this kind of nut post 300 is inside threaded, production technology needs to adopt injection mold to realize through injection moulding, and injection mold will realize the nut inner structure, needs the automatic thread structure that takes off of design mould, and mould structure is complicated, the reliability is low to because the restriction of mould structure, the mould chamber number has certain requirement, generally is 8 chambeies or 16 chambeies, and mould price and production cycle are all longer, lead to the product singlets higher, and injection mold's life-span is also restricted.

For this reason, the present application also improves the structure of the plastic nut post 300 so as to enable its own processing mold to be significantly simplified, thereby effectively reducing the processing cost. Referring to fig. 8, 9, 10 and 11, fig. 8 is a schematic structural view of a plastic nut post according to a second embodiment of the present application; FIG. 9 is a schematic view of the plastic nut post of FIG. 8 from another perspective; FIG. 10 is a schematic view of a plastic nut post according to a third embodiment of the present application; fig. 11 is a schematic structural view of a plastic nut post in a fourth embodiment of the present application.

In the present application, the nut post 300 is a split structure symmetrically arranged, and includes a first half nut post 308 and a second half nut post 309; the first nut half stud 308 is rotatably connected at one end to the second nut half stud 309 so that the two can be rotated closed to form the complete internally threaded bore 301.

Compared with the traditional plastic nut column 300 structure, a new scheme of the open type foldable plastic nut column 300 is designed, the scheme of an injection mold can be greatly simplified, a mold thread-off structure is omitted, the mold design can reach one mold with 32 cavities or higher, the production efficiency is greatly improved, the cost of a single piece can be reduced to one third of that of the traditional integrated plastic nut column 300, the cost is saved by two thirds, and meanwhile, the reliability also meets the requirement. In summary, the structural design of the nut post 300 provided by the present application can significantly simplify the processing mold of the nut post itself, thereby effectively reducing the processing cost.

On the basis of the technical scheme, further improvement can be made, so that the nut column 300 structure in the second embodiment of the application is obtained. As shown in fig. 8 and 9, the nut post 300 has a split structure symmetrical to the left and right. In the bilateral symmetry split structure, the two half-nut columns 300 can be hinged through the hinge 310, so that the two half-nut columns can be conveniently rotated and closed. When in operation, the hinge 310 is rotated so that the two nut half-posts 300 are closed.

Specifically, the hinge 310 structure can be provided on the guiding and positioning rib 307 of the nut post 300. The guiding and positioning rib 307 has a large space material structure, so that the structure of the hinge 310 can be conveniently opened.

Specifically, in the above technical solution, a further improvement can be made, for example, the nut column 300 is a vertically symmetrical split structure. On the basis of the technical scheme, a third embodiment of the application can be obtained.

Specifically, as shown in fig. 10, the nut post 300 includes an open end forming an opening of the internal threaded hole 301, and a nut cover 302 closing the internal threaded hole 301; the nut post 300 has an upper and lower split structure at an opening end side. In this configuration, the hinge 310 is provided at the open end of the nut post 300, and since the open end has a circular ring shape, the material of the hinge 310 can be further saved, and the cost can be further reduced.

On the basis of the above technical solution, a fourth embodiment of the present application can also be obtained. Specifically, as shown in fig. 11, the nut post 300 includes an open end forming an opening of the internal threaded hole 301, and a nut cover 302 closing the internal threaded hole 301; the nut post 300 has a vertically split structure on the nut cover 302 side.

In this structure, the hinge structure is opened on the side of the nut cap 302 at the blind hole position of the nut post 300, and since the nut cap 302 is located outside the sleeve 200, the hinge structure is also located outside the sleeve 200, thereby preventing the hinge structure from affecting the fit connection between the nut post 300 and the sleeve 200.

In any of the above embodiments, further improvements may be made. For example, the first nut half stud 308 is rotatably coupled to the second nut half stud 309 via a hinge 310. It should be noted that the structure of the hinge 310 is only an example, and the present application is not limited to the rotational structure between the two half-nut posts 300, for example, the rotational structure may also be formed by a thin plastic wall between the two half-nut posts, and the two half-nut posts may be rotated and closed due to the bending property of the thin plastic wall itself.

Further, as shown in fig. 8 and 9, one of the first half-nut column 308 and the second half-nut column 309 is provided with a positioning protrusion on an inner end surface thereof, and the other is provided with a positioning recess which fits the positioning protrusion. Further, the positioning protrusion is a positioning post 311, and the positioning recess is a positioning hole 312. Of course, the positioning protrusion can also be a positioning rib, and the positioning recess can also be a positioning groove matched with the positioning rib.

The positioning matching structure can enable the internal threads of the two half nut columns 300 to be matched consistently, and avoids deviation.

In summary, in the present application, the hinge 310 of the nut post 300 may have a thickness of 0.3mm, and has a main function of connecting two semicircular nut posts 300 together, and matching a set of threads together to ensure product consistency. The positioning post 311 is mainly used to ensure accurate positioning of the threads after the two semicircular nut posts 300 are fastened, so as to prevent the threads from being misaligned and misplaced. After the completion of moulding plastics, merge two parts of nut, fix a position mutually through the accurate cooperation of reference column 311 and constant head tank, guarantee that the screw thread aligns, become complete nut post 300 structure after the closure.

The traditional metal insert nut post 300 is completed by placing the metal nut post 300 at the wall hanging position of the rear shell 100 through automatic equipment once injection molding when the rear shell 100 is injection molded, so that the metal nut post 300 is high in cost, needs the automatic equipment to complete, and has high requirements on the equipment. This novel folding type nut post 300 can be pressed into the 100 wall hanging structure positions of backshell after the backshell 100 is moulded plastics and is accomplished, improves the efficiency of moulding plastics, reduces material cost, also in addition than the integrative nut post 300 of moulding plastics of tradition with low costs two-thirds. The application of the nut column 300 can greatly improve the injection molding efficiency of the rear shell 100, greatly reduce the material cost and improve the product competitiveness.

It should also be noted that in the present application, in order to simplify the mold design and increase the number of cavities in a mold, the fold resistance of the selected PA66 plastic material is used to divide the plastic nut post 300 in two. Furthermore, the threads in the nut post 300 do not need to be completed by using a rotating insert on a die, so that the scheme of the die is simplified; furthermore, a thin plate with a certain thickness is connected between two halves of the nut post 300 to ensure that the two halves are not separated after injection molding, and the nut post 300 is bent to be a complete nut post 300 during assembly. Correspondingly, the positioning holes 312 and the positioning columns 311 are respectively arranged on the half pieces, so that the two half pieces can be conveniently combined into a complete nut column 300 to be capable of being mutually jogged for limiting.

In summary, the design of the present invention allows the nut post 300 to be manufactured at a lower cost and without waste than many competing solutions. It also allows for more efficient component management due to greater flexibility in design and manufacturing processes. Finally, the plastic can be colored so that the plastic design allows for color coding options, weight reduction and insulation performance. More importantly, the environment-friendly recycling of subsequent parts is facilitated, and the metal nut column 300 does not need to be used for separating metal from plastics.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Reference throughout this specification to "embodiments," "some embodiments," "one embodiment," or "an embodiment," etc., means that a particular feature, component, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in various embodiments," "in some embodiments," "in at least one other embodiment," or "in an embodiment," or the like, throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, components, or characteristics may be combined in any suitable manner in one or more embodiments. Thus, without limitation, a particular feature, component, or characteristic illustrated or described in connection with one embodiment may be combined, in whole or in part, with a feature, component, or characteristic of one or more other embodiments. Such modifications and variations are intended to be included within the scope of the present application.

Moreover, those skilled in the art will appreciate that aspects of the present application may be illustrated and described in terms of several patentable species or situations, including any new and useful combination of processes, machines, manufacture, or materials, or any new and useful improvement thereon. Accordingly, various aspects of the present application may be embodied entirely in hardware, entirely in software (including firmware, resident software, micro-code, etc.) or in a combination of hardware and software. The above hardware or software may be referred to as "data block," module, "" engine, "" terminal, "" component, "or" system. Furthermore, aspects of the present application may be represented as a computer product, including computer readable program code, embodied in one or more computer readable media.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A television comprises a rear shell, wherein the rear shell is provided with a sleeve and a nut post matched with the sleeve; it is characterized in that the preparation method is characterized in that,

the nut column is a plastic nut column, and an internal thread hole is formed in the nut column; the nut post comprises a post body, a nut cover and a nut head; one end of the column body is connected with the nut cover, and the other end of the column body is connected with the nut head; the outer diameter of the nut cover is larger than that of the column body, and a first nut column step surface is formed between the nut cover and the column body; the outer diameter of the nut cover is larger than the outer diameter of the end face of the sleeve, and the inner diameter of the column body is smaller than the inner diameter of the sleeve, so that the step surface of the first nut column is attached and pressed on the end face of the sleeve; the end face of the sleeve is also provided with a guide chamfer so that the nut column is guided and pressed into the sleeve to facilitate assembly;

the column body comprises a first column body and a second column body, and the outer diameter of the first column body is larger than that of the second column body, so that a second nut column step surface is formed between the first column body and the second column body; a first sleeve step surface is formed inside the sleeve, and the second nut column step surface is attached and pressed on the first sleeve step surface; meanwhile, a guide slope section is arranged on the inner wall of the sleeve facing the second column body, extends from the junction of the first column body and the second column body to the junction of the second column body and the nut head, and gradually approaches the second column body;

the outer diameter of the nut head is larger than that of the second column body, so that a fourth nut column step surface is formed between the nut head and the second column body; a third sleeve step surface is formed inside the sleeve, and the fourth nut column step surface is attached and pressed on the third sleeve step surface; the outer diameter of the nut head is larger than the inner diameter of the sleeve at the inner side of the position of the first sleeve step surface, so that the nut head is clamped in the sleeve;

the outer wall of the nut column is provided with a notch, and the inner wall of the sleeve is provided with a notch plane attached to the notch; the outer wall of the nut column is axially provided with a guide positioning rib, and the inner wall of the sleeve is provided with a guide positioning groove matched with the guide positioning rib; a third nut column step surface is formed on the end surface of the inner side of the guide positioning rib, a second sleeve step surface is arranged on the inner wall of the sleeve, and the third nut column step surface is attached and pressed on the second sleeve step surface;

2. The television set according to claim 1, wherein a plurality of ribs are distributed and connected to an outer wall of the sleeve in a circumferential direction, and the ribs are connected to an inner wall of the rear housing.

3. The television set as claimed in claim 1, wherein the nut post is a split structure symmetrically arranged and comprises a first half nut post and a second half nut post; the first half-nut column and the second half-nut column are connected in a rotating mode at one end, so that the first half-nut column and the second half-nut column can be closed in a rotating mode to form the complete internal threaded hole.

4. The television set as described in claim 3, wherein said nut post is a split structure with bilateral symmetry.

5. The television set as described in claim 3, wherein said nut post is a split structure symmetrical up and down.

6. The television set as claimed in claim 5, wherein an opening is provided at one end of the nut stud, the opening being an open end of the internally threaded bore; the other end of the nut column is connected with the nut cover, and the nut cover closes the internal threaded hole;

7. The television set as described in claim 6, wherein said nut post is formed as a split structure on one side of said nut cap.

8. A television set as set forth in claim 3 wherein said first nut half stud is rotatably connected to said second nut half stud by a hinge.

9. The television set according to claim 3, wherein one of the first half-nut stud and the second half-nut stud has a positioning protrusion on an inner end surface thereof, and the other has a positioning recess that engages with the positioning protrusion.

10. The television set according to claim 9, wherein the positioning protrusion is a positioning post, and the positioning recess is a positioning hole.